Smp3: Buying TONS of glowstone!!!

I need stacks and stacks of glowstone!!!! Since I am buying in a bundle, I expect a discount. Usually, the cheaper prices for glowstone are around 10r. I would pay 500-750 for each stack of glowstone! If you don't have that much glowstone, and I don't blame you. I will pay 90r for 10 glowstone. I need all the glowstone you have! Message me if you have any available and I will pay you well!